Now that CJ has entered the story we're getting some tantalizing clues to the location of the Other Tower, which we now know is called the Dunbar Apartments. I wanted to set up a thread through which we could share clues and ideas.
KC has confirmed that the Other Tower is based on a real location in Los Angeles.
We know that it isn't based on the Dunbar Hotel (props to Litmaster for that find).
Details we know, as of the end of Chapter 28, include:
• It's a high rise apartment tower.
• It has a grand foyer entryway.
• It has outside fire escapes.
• It may be located adjacent to a multi-story parking garage.
We have one nomination on the table. Tartius has suggested the SB Tower building at 548 S Spring Street, Los Angeles (see photo).
I think the search should be focused on the area around the old Downtown Los Angeles area. It's an older part of the city and there are a number of buildings there with fire escapes, which are rare elsewhere in the city.